Here’s a quote from
Jack Sexty, 25, Bristol, England: "Five or six hours in I just couldn't
see the light at the end of the tunnel - it was really hard but I got there in
the end," What he did was surpass the Guinness World Record bouncing
non-stop on a pogo stick, by achieving 10 hours
21 minutes. (http://www.bbc.com/news/uk-england-bristol-33395701)